/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/

#include <iostream>
#include "itkOrthogonallyCorrected2DParametricPath.h"
#include "itkPolyLineParametricPath.h"
#include "itkTestingMacros.h"

int itkOrthogonallyCorrected2DParametricPathTest( int, char*[] )
{
  constexpr unsigned int Dimension = 2;

  using PathType = itk::OrthogonallyCorrected2DParametricPath;
  using OriginalPathType = itk::PolyLineParametricPath< Dimension >;
  using InputType = PathType::InputType;
  using OffsetType = PathType::OffsetType;
  using VertexType = OriginalPathType::VertexType;
  using OrthogonalCorrectionTableType = PathType::OrthogonalCorrectionTableType;
  using OrthogonalCorrectionTablePointer = PathType::OrthogonalCorrectionTablePointer;

  bool passed = true;

  InputType   input;
  OffsetType  offset;
  VertexType  v;

  // Original Path
  OriginalPathType::Pointer originalPath = OriginalPathType::New();
  v.Fill( 2 );
  originalPath->AddVertex( v );
  v[0] = 4;
  v[1] = 13;
  originalPath->AddVertex( v );
  v[0] = 12;
  v[1] = 14;
  originalPath->AddVertex( v );
  v[0] = 13;
  v[1] = 3;
  originalPath->AddVertex( v );
  v.Fill( 2 );
  originalPath->AddVertex( v );

  // 24 Alternating offsets
  OrthogonalCorrectionTablePointer correctionTable = OrthogonalCorrectionTableType::New();
  for( int i = 0; i < 24; ++i )
    {
    correctionTable->InsertElement( i, 1 - (i%2) ); // alternates 1, 0
    }

  // Create the corrected path
  PathType::Pointer path = PathType::New();

  EXERCISE_BASIC_OBJECT_METHODS( path, OrthogonallyCorrected2DParametricPath,
    ParametricPath );

  path->SetOriginalPath( originalPath );
  path->SetOrthogonalCorrectionTable( correctionTable );

  // Test the corrected path

  std::cout << "Evaluating at 0, 0.5, and 3.99999:  " << path->Evaluate( 0 ) << ", "
       << path->Evaluate( 0.5 ) << ", " << path->Evaluate( 3.99999 ) << std::endl;

  std::cout << "Evaluating to an index at 0, 0.5, and 1.0: "
       << path->EvaluateToIndex( 0 ) << ", " << path->EvaluateToIndex( 0.5 )
       << ", " << path->EvaluateToIndex( 0.0 ) << std::endl;
  if( int( 0.5 + 1000 * ( path->Evaluate( 0.0 ) )[0]) != 1016 ||
      int( 0.5 + 1000 * ( path->Evaluate( 0.0 ) )[1]) != 2179 )
    {
    std::cout << "OrthogonallyCorrected2DParametricPathTest:  EvaluateToIndex() Failed" << std::endl;
    passed = false;
    }

  input = 0;
  offset = path->IncrementInput( input );
  std::cout << "Incrementing the input from 0 to " << input << ": " << offset << std::endl;

  input = 0.5;
  offset = path->IncrementInput( input );
  std::cout << "Incrementing the input from 0.5 to " << input << ": " << offset << std::endl;

  if( passed )
    {
    std::cout << "Test passed" << std::endl;
    return EXIT_SUCCESS;
    }
  else
    {
    std::cout << "Test failed" << std::endl;
    return EXIT_FAILURE;
    }
}
